Test your ability to spot intervals you hear. Listen to two notes and determine the distance between them. Great for musicians and anyone who wants to practice linking what you hear to what’s notated. Especially good practice for sight-singing, and builds overall musicianship for anyone on any instrument.
It’s simple: You will be given a play button, and several choices of note pairs on a staff. Press the play button to hear the interval, and select the correct notation. If you get it right the first time, your rating goes up, and difficulty increases based on rating.
Your rating affects factors like interval size and direction, which intervals are possible, and how many choices you must pick from.
The sound is generated by your device's MIDI player. You can choose any available MIDI instrument to hear your intervals with, let it randomize or stay on your favorite. Change at any time.
测试你的能力，发现你听到的间隔。听两个音符，并确定它们之间的距离。伟大的音乐家和谁想要练习连接你听到什么记谱。对视唱特别好做法，并建立对任何人的任何仪器整体的音乐修养。
原因很简单：你会得到一个播放按钮，并注意对在工作人员的几个选择。按播放按钮收听间隔，并选择正确的符号。如果你得到它在第一时间，你的等级上升，并基于评价的难度增大。
您的评价会影响像间隔的大小和方向，这间隔是可能的，又有多少选择，你必须挑选因素。
声音是由设备的MIDI播放器生成的。你可以选择任何可用的MIDI乐器听到你的间隔搭配，让它随机或留在你的最爱。在任何时候改变。

v1.1
- app rotates properly now
- instrument is acoustic grand piano by default instead of random
- added info popups describing rating details and instrument selection
- now includes an option to disable the flying note glyph particles in the background
- ads are gone